La Sportiva Men's Karakorum Leather Boots for Hiking, Mountaineering, Backpacking & Outdoor Work
Fabric type: 100% LeatherSole material: SyntheticShaft circumference: 20 centimetersOuter material: RubberKarakorum uses a new tapered 8mm high density Nylon that provides a smooth flex and protection throughout the boot. This allows for New-matic crampon compatibility and long lasting consistent flex.The 2.8mm Idro-Perwanger leather upper is ideal for water repellency, breathability and durability.Aggressive Vibram sole with semi-automatic crampon attachmentMulti-directional 3D Flex hinge promotes greater flexibility and faster break-inIDEAL TERRAIN: general mountaineering and heavy backpacking